2. that while the robot had gained vast amounts of knowledge, it retained an innocence and naivete

I would have liked the scene with the housebot to have been to have been fleshed out a little: how did the two robots make contact; why did Sarah follow the housebot's directions.

But I found the fact that Sarah doesn't become a master strategist wonderful. The bot's naive enough to kill a man and mount a revolution with a tiny, unconnected band of farmbots without any apparent larger world view or coherent game plan. This makes the story unexpectedly tragic.